Blind



(N0 ModeL) P. A. LEWIS BLIND SLAT ADJUSTER.

a ail I I i E 2 n Pat'entedMay 4, 1886.

UNITED, STATES PATENT OFFICE.

PAULINUS ALOYSIUS LE\VIS, OF GALVESTON, TEXAS.

BLIND SLAT ADJUSTER.

SPECIFICATION forming part of Letters Patent No. 341,338, dated May 1-,1886.

Application filed February 26, 1886. Serial No. 193,305.

To all whom it may concern.-

Be it known that I, PAULINUS ALoYsIUs LEWIs, a citizen of the UnitedStates, and a resident of Galveston, in the county of Galveston andState of Texas, have invented certain new and useful Improvements inRegulators and Fasteners for Shutter-slats; and I do hereby declare thatthe following is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,which form a part of this specification, and in which- Figure 1 is aperspective view of as much of a windowshutter as will be sufficient toillustrate my invent-ion. Fig. 2 is a vertical sectional view of thesame; and Fig. 3 is a front view,on an enlarged scale, of the slidingslotted bar and of the ends of the rods.

Similar letters of reference indicate corresponding parts in all thefigures.

My invention has relation to means for regulating and securing the slatsof window-shutters at any desired angle; and it consists in the improvedconstruction and combination of parts of the same, as hereinafter morefully described and claimed.

In the accompanying drawings, the letter A indicates a portion of theframe of a shutter. B is the central cross-piece or cross-stile of theshutter, and 0 indicates the pivoted slats. The upper end of the lowerrod, D, and the lower end of the upper rod, E, to which rods the edgesof the slats are pivotally connected, and by means of which rods theslats are set at the desired angles, are provided with thimbles orferrules F F, into which the ends of links G G are pivoted, and theother ends of these links are pivoted in transverse eyes H H, formed atthe ends of a longitudinally-slotted bar or plate, I, by turning thesaid ends over the ends of the links.

A plate, J, is secured upon the cross piece of the shutter, and isformed with a central inwardly-projeeting pointed pin or bolt, K, whichmay be driven into the cross-piece, and with perforations L L, for theinsertion of fastening-screws M, and a screw-threaded stud,

5oN, projects outwardly from the center of the plate, and has the plateor bar sliding upon it with its longitudinal slot 0.

(No modeLl A washer, P, fits upon the screw-threaded stud against theouter side of the slotted plate, and a thumb-nut, Q, fits upon the stud,and serves to clamp the slotted plate between the washer and thecross-piece of the shutter, adjusting it in any position at which it maybe placed. It will thus be seen that by loosening the thumb-nut, so asto allow the plate to slide, the said plate may he slid up or down,moving the slat-rods with it, and setting the slats at any desiredangle, and by securing the slotted plate the slats may thus be held atthe desired angle.

The slats may be closed fiat down and be held in this position,preventing the introduction of a knife or other instrument between theslats for the purpose of opening a window inside of the shutter, thuspreventing a very common mode of effecting an entrance into a buildingby burglars, while also the rigid adjustment of the slats will admit ofadjusting the slats at a certain angle, at which they will remainwithout being closed or opened by wind or rain, as they are liable to bewithout means for securing them at the angle.

If the shutter is not formed with a crosspiece, but is provided with onecontinuous series of slats, the plate having the threaded stud andthumb-nut may be secured upon the upper or lower end of theshutter'frame, and the slotted plate at the corresponding end of theslat-rod, when the device will accomplish the same results, and thedevice may be employed as well with shutters or pivoted slats in dryingor cooling houses in factories of various kinds as with window'shutters.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States 1. A shutter-stop consisting ofaslotted bar linked to the end of the slat-actuating rod of a shutter,in combination with a plate having a spur on one side and ascrew-threaded stud on the other, a washer, and a thumb-nut, substantially as and for the purpose set forth.

2. In a windowshutter, the combination of IOO screw-threaded stud, andsecuredupon the In testimonythatIclaimthe foregoing as my cross-piece 0fthe shutter, a plate having it own I have hereunto affixed my signaturein longitudinal slot sliding upon the threaded presence of twowitnesses. stud, and having outwardly and inwardly 5 curvedends, formingtransverse eyes, links PAULTNUS ALOYSIUS LEWIS.

pivoted in the said eyes and to the thimbled ends of the slat-rods, andawasher and a Vitnesses: thumb-nut fitting upon the screw-threadedNICHOLAS J. CLAYTON, itugfi as and for the purpose shown and set PATRICKS. RALITT.

